The Colorado Department of Transportation staged a “slow-speed chase” in two Denver locations to highlight the laws and penalties of driving while under the influence of pot.

The first was from 2 p.m. to 3 p.m. around Civic Center.

The second will be from 3:30 p.m. to 5 p.m. at Fidder’s Green Ampitheater in Greenwood Village where Snoop Dogg is set to perform later in the day.

The slow-speed chase included two vehicles — one that looks like a patrol car and the other wrapped in bright marijuana leaf designs — that will display messages about the dangers and consequences of driving while high, CODT says.

Snoop will join other artists onstage at Fiddler’s Green for the third annual Merry Jane Wellness Retreat.

And definitely no massive crowd of people toking up at 4:20 p.m. on Norlin Quad, CU officials hope.

Campus administrators believe they have permanently snuffed the once-annual pot gathering, which at its peak drew some 10,000 people to the Norlin lawn and landed CU at the top of Playboy’s party school list.

The campus is, however, hosting a Cannabis Symposium put on by Students for Sensible Drug Policy and the Cultural Events Board.

The University of Denver’s campus safety officer warned students in a tweet Wednesday that over-consumption of any marijuana product should be considered a medical emergency.